A new convergent synthesis of alpha - substituted - beta - carbolines
作者:P. Rocca、F. Marsais、A. Godard、G. Queguiner
DOI:10.1016/s0040-4020(01)90161-9
日期:1993.4
New convergentsynthesis of natural α-substituted-β-carbolines through metalations, cross-couplings and intramolecular substitution via (2-aminobenzene)-boronic acid, arylstannanes and ortho-fluoroiodopyridines.
Ruthenium-Arene-β-Carboline Complexes as Potent Inhibitors of Cyclin-Dependent Kinase 1: Synthesis, Characterization and Anticancer Mechanism Studies
作者:Liang He、Si-Yan Liao、Cai-Ping Tan、Rui-Rong Ye、Yu-Wen Xu、Meng Zhao、Liang-Nian Ji、Zong-Wan Mao
DOI:10.1002/chem.201301389
日期:2013.9.2
A series of RuII–arene complexes (1–6) of the general formula [(η6‐arene)Ru(L)Cl]PF6 (arene=benzene or p‐cymene; L=bidentate β‐carboline derivative, an indolealkaloid with potential cyclin‐dependent kinases (CDKs) inhibitory activities) is reported. All the complexes were fully characterized by classical analytical methods, and three were characterized by X‐ray crystallography. Hydrolytic studies
一系列的Ru II -arene复合物(1 - 6)通式[(η 6 -arene)的Ru(L)CL] PF 6(芳烃=苯或p -cymene; L =二齿β咔啉衍生物,吲哚生物碱具有潜在的细胞周期蛋白依赖性激酶(CDKs)抑制活性。所有配合物均已通过经典分析方法充分表征,其中三个已通过X射线晶体学表征。水解研究表明,β-咔啉配体在其水性行为中起着至关重要的作用。这些复合物在体外具有高活性,其中最活跃的复合物6与顺铂相比,对几种癌细胞的抗癌活性高3到12倍。有趣的是,该复合物能够克服对顺铂的交叉耐药性,并显示出对正常细胞的低得多的细胞毒性。配合物1 - 6可以直接靶向CDK1,因为它们可以在G2M期阻断细胞,下调CDK1和细胞周期蛋白B1的表达,并在体外抑制CDK1 /细胞周期蛋白B。进一步的机理研究表明,该复合物可通过线粒体相关途径和细胞内活性氧(ROS)升高有效诱导细胞凋亡。
catalytic processes. In this work, a H3PO4·12WO3/OMS-2 nanocomposite catalyst ([PW]-OMS-2) was prepared through the oxidation of a Mn(II) salt with sodium phosphotungstate by KMnO4. Comprehensive characterization indicates that different Mn2+ precursors significantly affected the crystalline phase and morphology of the as-synthesized catalysts and only MnSO4·H2O as the precursor could lead to a cryptomelane